Goodwill and Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

The following table summarizes “Goodwill” (in millions) for the years ended March 31, 2017 and 2016.



	March 31, 2017							March 31, 2016
	Gross Carrying Amount		Accumulated Impairment			Net Carrying Value		Gross Carrying Amount		Accumulated Impairment			Net Carrying Value
North America	$	1,145	$	(860	)	$	285	$	1,145	$	(860	)	$	285
Europe	511		(330		)	181		511		(330		)	181
South America	291		(150		)	141		291		(150		)	141
	$	1,947	$	(1,340	)	$	607	$	1,947	$	(1,340	)	$	607

Schedule of intangible assets, net

The components of “Intangible assets, net” are as follows (in millions).



	March 31, 2017								March 31, 2016
	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Tradenames	20 years	$	142	$	(70	)	$	72	$	142	$	(63	)	$	79
Technology and software	10.4 years	369		(209		)	160		365		(179		)	186
Customer-related intangible assets	20 years	443		(218		)	225		449		(199		)	250
Favorable energy supply contract	9.5 years	—		—			—		124		(116		)	8
	16.3 years	$	954	$	(497	)	$	457	$	1,080	$	(557	)	$	523

Schedule of amortization expense

Amortization expense related to “Intangible assets, net” is as follows (in millions).



	Year Ended March 31,
	2017			2016			2015
Total amortization expense related to intangible assets	$	69		$	71		$	70
Less: Amortization expense related to intangible assets included in “Cost of goods sold (exclusive of depreciation and amortization)” (A)	(8		)	(12		)	(12		)
Amortization expense related to intangible assets included in “Depreciation and amortization”	$	61		$	59		$	58


(A)	Relates to amortization of favorable energy supply contract.

Schedule of finite-lived intangible assets, future amortization expense

Estimated total amortization expense related to “Intangible assets, net” for each of the five succeeding fiscal years is as follows (in millions). Actual amounts may differ from these estimates due to such factors as customer turnover, raw material consumption patterns, impairments, additional intangible asset acquisitions and other events.



Fiscal Year Ending March 31,
2018	$	65
2019	65
2020	65
2021	65
2022	46